Matlab : 2 different cursor in a graph

2015 3 13
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Hello,
I would like to call 2 different cursor in a same graph, is it possible ? I have 2 graph in a figure (using sublopt). And in the first graph, I have 3 different courb like this :
subplot(2,1,1)
plot(x_new, y2, 'r')
hold on
[hAx,hLine1,hLine2] = plotyy(x_new,y1,x_new,y3);
For the moment, I call only one cursor for my figure (so for my 2 graphics, the cursor is the same) like this :
dcm_obj = datacursormode(fig);
set(dcm_obj,'UpdateFcn',@cursorcallback);
My second problem : when I want to remove the cursor on my coubr, I can't, it stays on the graph.
Thank you in advance,
Best regards

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